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    SubjectRe: [Resend RFC PATCH V4 13/13] x86/HV: Not set memory decrypted/encrypted during kexec alloc/free page in IVM
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    Date
    On 7/7/21 8:46 AM, Tianyu Lan wrote:
    > @@ -598,7 +599,7 @@ void arch_kexec_unprotect_crashkres(void)
    > */
    > int arch_kexec_post_alloc_pages(void *vaddr, unsigned int pages, gfp_t gfp)
    > {
    > - if (sev_active())
    > + if (sev_active() || hv_is_isolation_supported())
    > return 0;
    >
    > /*
    > @@ -611,7 +612,7 @@ int arch_kexec_post_alloc_pages(void *vaddr, unsigned int pages, gfp_t gfp)
    >
    > void arch_kexec_pre_free_pages(void *vaddr, unsigned int pages)
    > {
    > - if (sev_active())
    > + if (sev_active() || hv_is_isolation_supported())
    > return;

    You might want to take a look through the "protected guest" patches. I
    think this series is touching a few of the same locations that TDX and
    recent SEV work touch.

    https://lore.kernel.org/lkml/20210618225755.662725-5-sathyanarayanan.kuppuswamy@linux.intel.com/

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